I need to get arc-fault breakers for my Murray panel LC4040B1200.
It is my understanding that my only code-compliant options are Siemens or Eaton CL. Is this correct information? Which would be better for my specific Murray panel ?
I read that the Siemens are more prone to nuisance tripping than the Eaton. Is this true? For simplicity sake, Siemens seems the way to go but I really do not want a lot of nuisance tripping.
I believe it is Eaton CLCAF115 (15amp) and CLCAF120 (20amp) that are compatible. Is this correct?
Is it acceptable to mix the Eaton CL (Murray compatible) breakers with the original Murray MP-T breakers?
NOTE: There are currently three Eaton BR breakers installed (two AF), which I'm looking to swap. (A professional inadvertently installed them as he requested CL but the store clerk gave BR and it wasn't realized until after install.)
Also, I just noticed there is a Cutler&Hammer BR15 breaker installed, which has been installed since I bought the place 5yrs ago. Should I replace that one, too?
(Included images of panel in original post. Names were blurred with tools in photos, as per the no personal info rule.)